Micrel Inc., (Nasdaq: MCRL), an industry leader in analog, high bandwidth communications and Ethernet IC solutions, today introduced the MIC2130/1, a new series of high voltage synchronous buck controller ICs offering a frequency dithering feature that minimizes EMI and adheres to global EMC standards. Targeted at the industrial, communication, automotive and high-end consumer markets, the solutions are ideal for high voltage and high efficiency point of load systems, including printer head drivers, gaming applications and mobile entertainment systems. The ICs are currently available in volume quantities, with pricing starting at US$1.63 for 1K quantities.

"Industrial, automotive and medical applications have rigorous quality and performance specifications that frequently require the lowest possible EMI and tolerance to high input voltages," noted Ralf Muenster, Micrel's marketing director for power products. "In order to meet global EMC specifications, Micrel's MIC2131 features a +/-12 percent switching frequency dithering to produce a spread spectrum thereby lowering the EMI peaks. In addition, the synchronous operation gives designers the highest possible efficiency with the best performance for a variety of FETs."

The MIC2130/1 operates over a wide input voltage range of 8 to 40V and offers adjustable output voltages down to 0.7V. The device features a 150KHz frequency option, available now, which allows optimization for best efficiency or size. The solution also offers internal drivers for output currents up to 15A and an adaptive gate drive allows efficiencies of more than 95 percent. The ICs provide better than 2 percent output voltage accuracy over -40C-deg to +125C-deg and excellent line and load regulation thanks to a fast hysteretic control loop during transients. The MIC2131 has advanced current limit protection which allows for increased current when powering highly capacitive loads quickly. The ICs are available in a 150kHz, 16-pin e-pad TSSOP option today. The 400Khz frequency option and the MLF(R)-16 4mm x 4mm package option will both be available in the first quarter of 2008.

About Micrel, Inc.

Micrel Inc., is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: http://www.micrel.com.

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